| E | O (JD) | O (dat) | Period |
| -97 | 2411988 | 1891-09-12 | 285.93 |
| -86 | 2415144 | 1900-05-04 | 286.03 |
| -85 | 2415431 | 1901-02-15 | 286.22 |
| -84 | 2415713 | 1901-11-24 | 286.25 |
| -59 | 2422861 | 1921-06-20 | 286.18 |
| -58 | 2423153 | 1922-04-08 | 286.11 |
| -57 | 2423441 | 1923-01-21 | 286.23 |
| -56 | 2423724 | 1923-10-31 | 286.24 |
| -55 | 2424013 | 1924-08-15 | 285.15 |
| -54 | 2424301 | 1925-05-30 | 283.65 |
| -53 | 2424589 | 1926-03-14 | 283.42 |
| -52 | 2424862 | 1926-12-12 | 284.07 |
| -51 | 2425144 | 1927-09-20 | 283.5 |
| -50 | 2425421 | 1928-06-23 | 282.29 |
| -49 | 2425712 | 1929-04-10 | 283.07 |
| -48 | 2426002 | 1930-01-25 | 285.42 |
| -47 | 2426281 | 1930-10-31 | 286.64 |
| -46 | 2426561 | 1931-08-07 | 286.79 |
| -45 | 2426853 | 1932-05-25 | 286.15 |
| -44 | 2427149 | 1933-03-17 | 286.36 |
| -43 | 2427429 | 1933-12-22 | 287.57 |
| -42 | 2427719 | 1934-10-08 | 287.92 |
| -41 | 2428001 | 1935-07-17 | 286.29 |
| -40 | 2428291 | 1936-05-02 | 285.36 |
| -39 | 2428577 | 1937-02-12 | 285.5 |
| -38 | 2428868 | 1937-11-30 | 285.5 |
| -37 | 2429142 | 1938-08-31 | 286.21 |
| -36 | 2429431 | 1939-06-16 | 286 |
| -35 | 2429714 | 1940-03-25 | 285.15 |
| -34 | 2430003 | 1941-01-08 | 283.86 |
| -33 | 2430296 | 1941-10-28 | 284.71 |
| -32 | 2430576 | 1942-08-04 | 286.57 |
| -31 | 2430861 | 1943-05-16 | 286.43 |
| -30 | 2431123 | 1944-02-02 | 285.5 |
| -29 | 2431436 | 1944-12-11 | 286 |
| -28 | 2431721 | 1945-09-22 | 286.5 |
| -27 | 2432006 | 1946-07-04 | 287.92 |
| -26 | 2432290 | 1947-04-14 | 289.15 |
| -25 | 2432586 | 1948-02-04 | 288.93 |
| -24 | 2432862 | 1948-11-06 | 289.5 |
| -23 | 2433153 | 1949-08-24 | 289.5 |
| -22 | 2433454 | 1950-06-21 | 289 |
| -21 | 2433748 | 1951-04-11 | 288.93 |
| -20 | 2434032 | 1952-01-20 | 289.36 |
| -19 | 2434317 | 1952-10-31 | 288.15 |
| -18 | 2434605 | 1953-08-15 | 286.28 |
| -17 | 2434888 | 1954-05-25 | 286 |
| -16 | 2435178 | 1955-03-11 | 286.36 |
| -15 | 2435463 | 1955-12-21 | 285.65 |
| -14 | 2435747 | 1956-09-30 | 285.5 |
| -13 | 2436037 | 1957-07-17 | 285.35 |
| -12 | 2436321 | 1958-04-27 | 285.14 |
| -11 | 2436600 | 1959-01-31 | 285.93 |
| -10 | 2436890 | 1959-11-17 | 285.5 |
| -9 | 2437171 | 1960-08-24 | 284.86 |
| -8 | 2437462 | 1961-06-11 | 284.92 |
| -7 | 2437751 | 1962-03-27 | 284.64 |
| -6 | 2438030 | 1962-12-31 | 285.93 |
| -5 | 2438316 | 1963-10-13 | 286.5 |
| -4 | 2438594 | 1964-07-17 | 286.5 |
| -3 | 2438881 | 1965-04-30 | 287.42 |
| -2 | 2439183 | 1966-02-26 | 287.64 |
| -1 | 2439461 | 1966-12-01 | 288.5 |
| 0 | 2439763 | 1967-09-29 | 289.15 |
| 1 | 2440042 | 1968-07-04 | 287.93 |
| 2 | 2440331 | 1969-04-19 | 287.28 |
| 3 | 2440618 | 1970-01-31 | 286.5 |
| 4 | 2440905 | 1970-11-14 | 286 |
| 5 | 2441190 | 1971-08-26 | 286.79 |
| 6 | 2441476 | 1972-06-07 | 286.65 |
| 7 | 2441759 | 1973-03-17 | 287.07 |
| 8 | 2442050 | 1974-01-02 | 287.42 |
| 9 | 2442338 | 1974-10-17 | 286.07 |
| 10 | 2442624 | 1975-07-30 | 285.57 |
| 11 | 2442918 | 1976-05-19 | 286.29 |
| 12 | 2443201 | 1977-02-26 | 284.57 |
| 13 | 2443470 | 1977-11-22 | 283.92 |
| 14 | 2443763 | 1978-09-11 | 283.65 |
| 15 | 2444054 | 1979-06-29 | 282.72 |
| 16 | 2444318 | 1980-03-19 | 284 |
| 17 | 2444619 | 1981-01-14 | 284.5 |
| 18 | 2444894 | 1981-10-16 | 284 |
| 19 | 2445183 | 1982-08-01 | 285.57 |
| 20 | 2445464 | 1983-05-09 | 288.22 |
| 21 | 2445752 | 1984-02-21 | 289.07 |
| 22 | 2446041 | 1984-12-06 | 289.14 |
| 23 | 2446329 | 1985-09-20 | 289.57 |
| 24 | 2446643 | 1986-07-31 | 288.79 |
| 25 | 2446917 | 1987-05-01 | 287.5 |
| 26 | 2447208 | 1988-02-16 | 287.29 |
| 27 | 2447493 | 1988-11-27 | 286.21 |
| 28 | 2447766 | 1989-08-27 | 285.07 |
| 29 | 2448052 | 1990-06-09 | 284.79 |
| 30 | 2448340 | 1991-03-24 | 284.36 |
| 31 | 2448639 | 1992-01-17 | 284.36 |
| 32 | 2448912 | 1992-10-16 | 285.21 |
| 33 | 2449200 | 1993-07-31 | 286 |
| 34 | 2449482 | 1994-05-09 | 285.36 |
| 35 | 2449758 | 1995-02-09 | 285.65 |
| 36 | 2450053 | 1995-12-01 | 285.86 |
| 37 | 2450343 | 1996-09-16 | 285.42 |
| 38 | 2450631 | 1997-07-01 | 286.71 |
| 39 | 2450919 | 1998-04-15 | 287.07 |
| 40 | 2451195 | 1999-01-16 | 285.93 |
| 41 | 2451483 | 1999-10-31 | 285.79 |
| 42 | 2451771 | 2000-08-14 | 285.64 |
| 43 | 2452059 | 2001-05-29 | 284.78 |
| 44 | 2452340 | 2002-03-06 | 284.65 |
| 45 | 2452635 | 2002-12-26 | 283.93 |
| 46 | 2452914 | 2003-10-01 | 283.57 |
| 47 | 2453187 | 2004-06-30 | 283.71 |
| 48 | 2453476 | 2005-04-15 | 283.21 |
| 49 | 2453753 | 2006-01-17 | 283.57 |
| 50 | 2454047 | 2006-11-07 | 284.79 |
| 51 | 2454324 | 2007-08-11 | 285.29 |
| 52 | 2454616 | 2008-05-29 | 285.78 |
| 53 | 2454903 | 2009-03-12 | 285.71 |
| 54 | 2455185 | 2009-12-19 | 285.57 |
| 55 | 2455472 | 2010-10-02 | 286.36 |
| 56 | 2455758 | 2011-07-15 | 286.5 |
| 57 | 2456042 | 2012-04-24 | 287.07 |
| 58 | 2456327 | 2013-02-03 | 287.07 |
| 59 | 2456622 | 2013-11-25 | 286.57 |
| 60 | 2456908 | 2014-09-07 | 287.22 |
| 61 | 2457199 | 2015-06-25 | 288.22 |
| 62 | 2457477 | 2016-03-29 | 287.57 |
| 63 | 2457765 | 2017-01-11 | 287.28 |
| 64 | 2458056 | 2017-10-29 | 287.79 |
| 65 | 2458348 | 2018-08-17 | 288.29 |
| 66 | 2458627 | 2019-05-23 | 289.36 |
| 67 | 2458925 | 2020-03-16 | 289.36 |
| 68 | 2459211 | 2020-12-27 | 288.34 |
| 69 | 2459501 | 2021-10-13 | 289.93 |
| 70 | 2459792 | 2022-07-31 | 292.12 |
| E | Cycle number from the GCVS4 epoch. |
| O (JD) | Julian date at observed time for maximum. |
| O (Dat) | Same as above, expressed as date. |
| Period | Calculated mean period at cycle number E. |